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GQM. ATHERTON, or FRIENDsvILLE, ILLINOIS.

HUB BORING AND MoRTIsING ivrscrrritra` Specicaton of Letters Patent N o.26,330, dated December` G, i i

To all 'whom 'it 'may cof/teem:

Be it known that I, G. M. ATHEnToN,of

Friendsville, in the county of Wabash and State of Illinois, haveinvented certain new and useful Improvements in Machinery for Boring andMortising Hubs; and I do hereby declare that the following is a full,clear, and exact description thereof, reference being had to theaccompanying drawings, forming a part of this specification, in which-Figure 1, represents a plan view of the machine, Fig. 2, is an endelevation of the saine, Fig. 3, is a side elevation, and, Fig. 4, isaperspective view of the device for operating the auger.

Similar letters of reference indicate corresponding parts in the severalfigures.

My invention relates to certain novel improvements in boring andmortising hubs, for vehicles, said improvements consisting inarrangingupon the inside of one `of the standards, two spring rods, one on eachside of thereciprocating gate, to which rods are pivoted two pawls,which may be made to engage alternately with suitable racks `upon thecarriage by a lever working in a guide, i

so as to move the carriage simultaneously with the upward movement ofthereciprocating gate for carrying the mortising chisel, all as hereinafterdescribed.

To enable those skilled in the art to fully understand my invention, Iwill proceed to describe its construction and operation.

A, represents a fixed framework, serving as guides for a travelingcarriage, B, and to support the mechanism for boring andmortising thehub, which is represented, by C, as being centered between two posts D,D on the traveling carriage B, the post D', is capable of adjustment ina slot in the carriage B, for adapting diii'erent lengt-hs of hubs, itis fixed rigidly in place aiter the hub has been centered, by wedges a,a.

One end of the hub bears against an index wheel E, the diameter of whichis greater than that of the hub C, with its periphery armed withprojecting teeth or p1ns.` The hub is xed to this wheel and turns withit, ZJ, is a spring plate one end of `which is fixed to a bent armprojecting out from post D, while the other end is raised by an arm c,projecting from a spring rod F, as this rod is drawn up.` The plate Z2,has a small perforation through it which when it is not actedL*""iizipon by the arm c, passes over one of the pins projecting fromthe index wheel, and

prevents this wheel and the hub `from movj ing,

On the lower endofvthejrod hook or pawl e, whichis held up againstlthe.,

periphery of the indexwheel byaspring Gr, t secured behind the armanda'cting upon` the end of aguide` for" this rod f,is another guide forthe rod F,1and `g,stijll anotherfor keeping the rodi positioirfwhile itis being j raised or depressedwhichcisl done by `means of a bent`lever,'I-I, pivoted on top of postD. l j. Now by depressing thehandleof the `lever the rod F,will be raised, which, by means of thehook@V actinguponithe pins projecting j j from index `wheel I*l,`uandthe arm cacting upon the spring Spia-te b,fthej hubmlaybe anothermortisein it.` By this arrangement `rotated the required `distance for? makingit is only necessary to `movethe indexwheel"` E, for a space of one `crtwopins aftereach, y mortise 1s made, 1n orderto `cause the fniortisesto be all cutjiat eqpualfdistances.apart.` upon the hub; `I i u Theboring andinortisimgtools are snp ported by a frame composed oftwo fup-1 rights A,1wrth crosspiece connectmgithese j is a horizontalbevelspurwheel J, withwa hollow shaft,';throughl which `works, the austandards A.To `the"shaftoffthis latter bevel wheel is connecteda cranlrliandled, `1

for giving motionto the auger K. `Tlie au-` j ger K, receives a` rotarymotion ,and at-the j same time 1s forcedinto `ordrawn from the` hub bymeans of a screw thread,`gcut onsite upper end the stem oftheaugerljfitting in a f l square soc tet in the'shatt of ,bevelwheel 1J.

The raising and depressing of theaugerdurf" C ing the motion ofthebevelwheel J, ,isef` j fected by two fixed `spring arms d, d, which`clasp the screw end of the augenandjare 1` j held tightlyin the threadof the screw `by a clamp e. This device I dont desire to clailnyl`therefore it is not necessary to particularize it, the operation beingto rotate` the auger and at the same time to raise or depressitso "3 l.as to eiect the operation of boring, by sirn-` l ply turning the'crank Jp L, is a vertical reciprocating gatejfor carrying the mortising tool N,shown in red j lines Fig. 2, workingin` suitable guides in standards Aand operated by a, lleverjL/a I j placed above it and pivoted to astandard l on one side of the machine and connected to the gate L, by ajointed rod. The lever works in a vertical slot in the oppositestandard. On the inside of this latter standard and shown by red lines,Fig. 3, are curved rods P, P', pivoted to said standard near the bottomof the same and attached to springs R, R', at their tops which springspass through boxes, 70,76, furnished with set screws for tightening thesprings R R'.

Y S, S' are pawls pivoted to the rods P, P' and T, T', are racksprojecting up from the Vcarriage B, which are acted upon by the pawls soas t-o move the carriage back and forth as the mortising of the hubproceeds. These pawlsare operated through the medium of rods P, P', andsprings R R', by arms V, V', which proceed out von each side of thereciprocating gate L, the gate being raised and depressed by the leverL'. On the outside of this standard is aV lever M, operated by a rod M';the ends of this lever are turned under the pawls S, S', so that eitheronel of said pawls, can be disengaged from the racks T, T', by simplymoving the lever back or forth; these pawls work in opposite directions.

The operation of boring and mortising the hub is as follows: Theoperator takes hold of the crank J", and rotates the auger K, which isdriven into the hub at the same operation, vit is then withdrawn and theycarriage moved to forward by a lever W,

moved from the hub and the mortising tool is depressed by the lever-L',and elevated again when the carriage is moved forward and backward bythe action of the pawls S, S' upon the racks T, T', as above described.The mortising tool N, can be rotated by a handle attached to it so as tobring its beveled side opposite the work to be cut. Vhen the carriagehas moved forward the length of the mortise the motion is reversed bythrowing the opposite pawl in play with its rack. When the boring is tobe performed the pawls are both disengaged from the racks upon thecarriage and '1t is moved by the hand lever XV, as before described.

' This machine is strong, simple and operates with great efficiency. Anysized hubs may be mortised with great eXactness and rapidity. Byremoving the posts on the carriage on which the hub is connected a rest,or table, can be substituted, and the machine used for various speciesof mortising work.

What I claim as my invention and desire to secure by Letters Patent, is-

The arrangement of two pawls S, S', with spring rods P, P', and arms V,V, projecting from the reciprocating gate L, for operating the same, incombination with lever M, for relieving either one or both pawls fromracks T, T', the whole being arranged and combined for the purpose ofmoving the carriage with the hub up to the mortising tool as set forth.

Gr. M. ATHERTON.

Vitnesses JAS. LEEDS, B. T. ATHERTON.

